Strings and allocations
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A quadtree does the same thing for two-dimensional space. It takes a rectangular region and divides it into four equal quadrants: northwest, northeast, southwest, southeast. If a quadrant has too many points in it, it subdivides again and again. Each subdivision creates smaller and smaller cells where points are densely packed.。关于这个话题，91视频提供了深入分析
刘慈欣在《三体》里写过这么一句话，弱小和无知不是生存的障碍，傲慢才是——没错，这就是媒体行业既得利益者的傲慢。